D-Link DVG-2101SP User Manual page 32

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Codec

The codec used for each call will be negotiated with the peer party before each session, and therefore many

codecs will not be included in your default configuration. The default codec is G.729A, it occupies little

bandwidth while maintaining good voice quality.

If your upstream speed is only 64Kbps, using G.711_A codec is not recommended. It is better to have at least

256Kbps upstream if you would like to use G.711_A.

Priority

Codec

Packetization Time

DTMF

There are five priorities for you to configure the codec priority in the order you

preferred. Priority 1 means the first priority and priority 5 means the last.

Select the codec type from the drop-down list.

Select the length of the digital voice segment that each packet holds. The default is 20

millisecond packets. Selecting 10 millisecond packets enhances the voice quality, as

less information is lost due to packet loss, but doubles the load on the network traffic.

Select the method of DTMF tone generation from the drop-down list.

DVG-2101SP User Manual

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